Time switch



Apr. 10, 1923. 1,451,094

' E.E.FREY

TIME SWITCH Filed May 17, 1920 Laux I'. 72er.

Patented Apr. l0, 1923.

m3 E. FREY, OF LONG BEACH, CALIFORNIA.

1,451,094 PATENT OFFICE.y

TIME SWITCH.

Application led May 17, 1920. Serial No. 382,879.

To all whomtmay concern:

Be it known that I, ELMER E. FREY, a citizen of the United States, and resident of Long Beach, county of Los Angeles, State of California, have invented a new and useful Improvement in Time Switches, of which the following is a specification.

My invention relates to a switch operating means, and has especial reference to a mechanism for automatically controlling the switching on and olf, respectively, of an electric light or lights, in predetermined sequence, an Vobject of the invention being to provide a simple, cheap and convenient arrangement in which the movement ofthe switch may be effected at any predetermined time or times,'to the end that the automatic lighting of store windows and the like, may befaccomplished at a definite time and the extinguishment of the lightsy accomplished at a predetermined later time, thereby to dispense withthev necessity for manual attention. Y l

Other objects will appear from the subjoined specification in connection with the accompanying drawings which represent a prey erred vform of embodiment of the invention, and in which yin g Figure 1 is a broken rear view of the operating mechanism, yin combination with an electric switch and arranged to operate in clock.

Figure 2 is a front view of a clock showthe index fingers and trigger, and

Figure 3 is a side and rear view of the ,tri ger bar.

n the construction of my invention I prefer to associate same in combinationwith an alarm clock of usual construction, adapt- K the train of lgears of the alarm mechanism to transmit the motive power for mechanically operating the switch; and the t -vthe dial 9 and to similar numerals shaft of thehour hand, on the face of the clock, to carry, with a frictional fit, the index p discs and fingers to trip the trigger mechani'sm at the desired'pre-determined hours.

A preferred form' is the frictional mounting' ofthe respective discsr 1 and 2 on the shaft 3 ofthe'hour hand 4, each ofthe respective discs having arranged on itsy face, thel numerals one to twelve, corresponding v onlthe dial 9. Each disc 1 and2 isk provided with a finger' 5 and 6 respectively, *arranged to operate a trigger stud 7, extending through an aperture 8 iii in the path of travel of the fingers 5 and 6 during their movement around the dial conjointly with the movement of the hour hand 4.

Slidably fulcrumed on a plate 10 in the rear of dial 9 and held in operative position by means of headed studs 12 is a trigger bar 14 carrying integral with and per end, the trigger stud 7, and towards its lower end being bent upon itself in practically a U form 15, as shown in Fig. 3, the en d of the upwardly extending portion .16 being shaped in form of an irregularT. The short arm 17 of the T, while in normal position, forms a stop and holds a finger 18, which is integral with' a pinion shaft 19, against revolution. The complementary and longer arm 20 of the T extends in the pathway of travel of spaced studs 2 1, 21', 21", and 21', provided on a webbed gear 22. To the shaft 23 of said gear 22 is secured the inner` end of a ribbon spring 24, the opposite or complementary end being se- A cured to the stud'25 of the main frame; and

a key 26 for winding said spring cured in position on the shaft 23.

The end 30 of a spring 28 rests normally in a lip 32 formed in the side of the trigger bar 14, and exerts tension on the trigger bar to hold the same in normal inoperative position.

Slidably secured to the by means of headed studs 34, is an operating bar 36, the upper end 37 of which is positioned in the path of travel of a stud 38 provided on the webbed gear 22. The lower end 39 of said bar is provided with a horiz ontal slot 40, for purposes appearing hereinafter.

Paralleling and acting in conjunction with the operating bar 36, is a link bar-41, the upper end 42 of which is pivotally attached tothe end of one arm 43 of a bell crank lever 44, which is fulcruined on a stud 45 in frame plate 33. The other arm 46 of the bell crank lever 44 is disposed yin the path of travel of the stud 38 on the webbed gear 22. On the lower end of the link bar 41 is a stud 47'which passes through and engagesy in slot 40 of the bar 36, and which is electrically insulated from a blade 48 of a switch 49, the circuit wires leading to and from said switch being indicated by Figures 50 and 50. i

Insetting the mechanism to operate the cutting-in lof the electric switch at Athe hour desired, the disc 1, positioned on the being severtical frame 33 provided with a pin disposed in the path of said fingered disks, said bar formed with to lock the gears of thetrain .to operate the train is released by engagement of the fingered disks with the bar, l

and cause the pin on said bar to be lifted above and behind the fingers of said disks,

disposed in the pati of said stud and arranged to close the switch when the gears are released, .and a resetting and switch opening lever pivotally connected to said switch lever and having one end thereof in line with the travel of said stud.

2 An automatic switch consisting, in combination with an alarm clock, the gear train thereof for operating the same, and the hour hand carrying shaft, of two disks frictionally mounted on said fulerumed, slidable trigger-bar provided with a pin disposed in the path of said fingered dlsks and formed with means for locking said gear train a ainst revolution and Wlth an arm, one of t e gears of the train provided with a plurality of members arranged to operate said trigger-bar when reeased by one of said disks fingers and cause the pin to be lifted to behind the finger of one of said disks, a spring to hold said trigger-bar under tension to cause same to return to normal position when the members of the gear escape from the arm, a stud on said gear, a switch operating bar having one end in the path of movement of said stud, and a lever eo-operating with said switch operating bar and operable by said stud to re-set the switch bar and open the switch.

In testimony whereofI affix my ELMER E.

Witnesses:

FRANK NEWNHAM, ANTON GLoE'rzNER, Jr.

signature. FREY. 

